selective identification feature

Japanese: selective identification feature(英語表記)selectiveidentificationfeature
selective identification feature

…The original form of this device was developed in the UK around 1940 during World War II and used in actual combat. The system currently used in Japan and other Western countries has had a selective identification feature (SIF) added since around 1950 to improve secrecy and improve the ability to selectively identify individual friendly aircraft and ships, and is sometimes called a SIF device. The device is composed of an interrogator on the ground (or ship) and a transponder mounted on the aircraft (or ship), and its purposes include identifying friendly and enemy aircraft, identifying specific friendly aircraft, extending and facilitating the range of interception or traffic control, and displaying emergency situations. …

*Some of the terminology that refers to "selective identification feature" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…この装置の原形は第2次大戦中の1940年ころイギリスで開発され実戦に使われた。現在,日本をはじめ西側諸国で使用している方式は,50年ころから秘匿性の向上と味方航空機や艦船などに対する個別の選択識別性を向上するためSIF(selective identification feature)機能を付加したもので,SIF装置と呼ばれることもある。装置の構成は地上(または艦船)の質問機(インタロゲーター)と航空機(または艦船)に搭載した応答機(トランスポンダー)からなり,その目的には敵味方識別のほかに,味方機中の特定機の識別,要撃または交通管制の可能範囲の延伸と容易化,緊急事態の表示などがある。…

※「selective identification feature」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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